[%c_effect d5;square;d5;type;Inaccuracy;persistent;true] This move allows White to close the center, reducing the potential of the dangerous light-squared bishop.
14. g2g3 [%c_effect g3;square;g3;type;Inaccuracy;persistent;true] 14... d6b4  15. e1f1  15... f4d3  16. d1d3 